@article{NSJOM_2010_40_2a_11,
     author = {Igor Dolinka, and Petar Markovi\'c},
     title = {Preface},
     journal = {Novi Sad Journal of Mathematics},
     pages = {1-2},
     publisher = {mathdoc},
     volume = {40},
     number = {2},
     year = {2010},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_2010_40_2a_11/}
}